For some reason with SharePoint Online when trying to modify the site in SP Designer 2013 I am getting this error. Same thing on different machines.
"An error occurred while trying to fetch data from your sharepoint site."
Any insight on how to correct this would be appreciated.
According to your description, I know there is an error occurred in SharePoint Online when using
SharePoint Designer 2013.
Here is a similar thread for you to take a look:
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